1. Cardiovascular Branch, Division of Intramural Research National Heart, Lung, and Blood Institute, National Institutes of Health Bethesda Maryland United States
2. Siemens Healthcare GmbH Erlangen Germany
3. Siemens Medical Solutions USA Inc. Malvern Pennsylvania United States
4. Pulmonary Branch, Division of Intramural Research National Heart, Lung, and Blood Institute, National Institutes of Health Bethesda Maryland United States
5. Systems Biology Center, Division of Intramural Research National Heart, Lung, and Blood Institute, National Institutes of Health Bethesda Maryland United States